SOAP  is an application-level protocol standard used to transport messages in distributed systems. The standard was defined and is maintained by the XML Protocol Working Group of the World Wide Web Consortium. SOAP is commonly used in the context of Web services. SOAP messages are encoded using XML and intended to carry XML encoded application data.
SOAP provides a standard to separate infrastructure related data from application data for XML based messages. SOAP messages are known as “envelopes,” which contain both a header, for infrastructure data, and a body for application data. The infrastructure which handles messages for applications is referred to as a “SOAP node.” This role is commonly filled by some middleware platform. The SOAP protocol dictates the rules for the proper processing of messages by nodes on behalf of applications; this includes processing of header information and handling of faults.
The header processing rules are designed to make it...
- 1.SOAP. Version 1.2, part 1: messaging framework (2nd ed). W3C Recommendation. http://www.w3.org/TR/soap12-part1/.